Swift Package Index

Build Information

Failed to build FoundationICU, reference 0.0.10 (8a12a1), with Swift 6.4 for Wasm on 21 Sep 2026 05:51:15 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-foundation-icu.git
Reference: 0.0.10
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/swiftlang/swift-foundation-icu
 * tag               0.0.10     -> FETCH_HEAD
HEAD is now at 8a12a1c Upgrade to ICU 74 (#39) (#42)
Cloned https://github.com/swiftlang/swift-foundation-icu.git
Revision (git rev-parse @):
8a12a1c7e21f64236d1cc51cd0eca14b1b4fc961
SUCCESS checkout https://github.com/swiftlang/swift-foundation-icu.git at 0.0.10
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/swiftlang/swift-foundation-icu.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Building for debugging...
[Planning deferred tasks]
[24 / 491] _FoundationICU
[27 / 491] _FoundationICU
[32 / 491] _FoundationICU
In file included from /host/spi-builder-workspace/icuSources/i18n/zonemeta.cpp:21:
/host/spi-builder-workspace/icuSources/common/umutex.h:239:18: error: no member named 'mutex' in namespace 'std'
  239 |     alignas(std::mutex) char fStorage[sizeof(std::mutex)] {};
      |                  ^~~~~
/host/spi-builder-workspace/icuSources/common/umutex.h:239:51: error: no member named 'mutex' in namespace 'std'
  239 |     alignas(std::mutex) char fStorage[sizeof(std::mutex)] {};
      |                                                   ^~~~~
/host/spi-builder-workspace/icuSources/common/umutex.h:240:22: error: no member named 'mutex' in namespace 'std'
  240 |     std::atomic<std::mutex *> fMutex { nullptr };
      |                      ^~~~~
/host/spi-builder-workspace/icuSources/common/umutex.h:240:29: error: expected expression
  240 |     std::atomic<std::mutex *> fMutex { nullptr };
      |                             ^
/host/spi-builder-workspace/icuSources/common/umutex.h:252:10: error: no type named 'mutex' in namespace 'std'
  252 |     std::mutex *getMutex();
      |     ~~~~~^
/host/spi-builder-workspace/icuSources/common/umutex.h:221:22: warning: constexpr constructor that does not initialize all members is a C++20 extension [-Wc++20-extensions]
  221 |     UMUTEX_CONSTEXPR UMutex() {}
      |                      ^
/host/spi-builder-workspace/icuSources/common/umutex.h:245:13: note: member not initialized by constructor
  245 |     UMutex *fListLink { nullptr };
      |             ^
/host/spi-builder-workspace/icuSources/common/umutex.h:230:14: error: no type named 'mutex' in namespace 'std'
  230 |         std::mutex *m = fMutex.load(std::memory_order_acquire);
      |         ~~~~~^
1 warning and 6 errors generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/FoundationICU.build/Debug-webassembly-wasm32/_FoundationICU-t.build/Objects-normal/wasm32/zonemeta.o /host/spi-builder-workspace/icuSources/i18n/zonemeta.cpp normal wasm32 c++ com.apple.compilers.llvm.clang.1_0.compiler failed with a nonzero exit code. Command line:     cd /host

    Using response file: /host/spi-builder-workspace/.build/out/Intermediates.noindex/FoundationICU.build/Debug-webassembly-wasm32/_FoundationICU-t.build/Objects-normal/wasm32/11b881b950eb02e21769317df93e9b41d1d7f0348e4e0901ae810dce93ca1a57-common-args.resp

    /usr/bin/clang -x c++ -target wasm32-unknown-wasip1 -fmessage-length\=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit\=0 -fcolor-diagnostics -Wno-trigraphs -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-non-virtual-dtor -Wno-overloaded-virtual -Wno-exit-time-destructors -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wno-float-conversion -Wno-non-literal-null-conversion -Wno-objc-literal-conversion -Wno-shorten-64-to-32 -Wno-newline-eof -Wno-c++11-extensions -Wno-implicit-fallthrough -fstrict-aliasing -Wdeprecated-declarations -Winvalid-offsetof -Wno-sign-conversion -Wno-infinite-recursion -Wno-move -Wno-comma -Wno-block-capture-autoreleasing -Wno-strict-prototypes -Wno-range-loop-analysis -Wno-semicolon-before-method-body --sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk @/host/spi-builder-workspace/.build/out/Intermediates.noindex/FoundationICU.build/Debug-webassembly-wasm32/_FoundationICU-t.build/Objects-normal/wasm32/11b881b950eb02e21769317df93e9b41d1d7f0348e4e0901ae810dce93ca1a57-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/FoundationICU.build/Debug-webassembly-wasm32/_FoundationICU-t.build/Objects-normal/wasm32/zonemeta.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/FoundationICU.build/Debug-webassembly-wasm32/_FoundationICU-t.build/Objects-normal/wasm32/zonemeta.dia -c /host/spi-builder-workspace/icuSources/i18n/zonemeta.cpp -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/FoundationICU.build/Debug-webassembly-wasm32/_FoundationICU-t.build/Objects-normal/wasm32/zonemeta.o
error: Build failed
BUILD FAILURE 6.4 wasm